### 6.3 Step 2: Building the consensus map

#### 6.3.1 Cheking chromosome connection and marker order consitency

Before creating the consensus map using the program `ConsMap`, it is important to check if the input maps are consistent between them. Consistency means here that: i) it must exist a path of common markers which connects the same chromosomes in the different input maps, ii) the marker order must be globally conserved between input maps which share more than 1 common marker.